Lenticular clouds from Bessyboot

These fabulous lenticular clouds were visible from the summit of Bessyboot at the end of Borrowdale. They stretched almost from Cockermouth to Penrith. The wind was strong and the clouds form in stationary waves after the wind has passed over the mountains. https://en.wikipedia.org/wiki/Lenticular_cloud says that the isolated lens-shaped clouds form when the air is taken to the peak of the wave and the temperature is below the dew point. So the clouds should be at the peaks and the distance between isolated clouds would represent the wavelength. I would estimate a wavelength of at least a mile, more likely 2 miles. It says that the gaps between are when the air goes down to the trough and the temperature is above the dew point. It has reignited my interest in the idea that the wave shape is fixed but that matter moves through the pattern. On the way down, the main pattern from the top picture was still visible - it is a stationary wave after all - although more clouds had filled in.

Back in Wigton, there were some weirdly twisted clouds visible which might be the remains of lenticular clouds as the front comes in and stratus starts to dominate.